Patent US3225213A successfully refreshed from Google Patents.
US3365840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crop growing device
Assignee: National Research Development Corp UK
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Filing: 1965-11-15
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Granted: 1968-01-30
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Expires: 1985-11-15
Abstract
No abstract record available.
Inventors
- 👤 Cooper Allen John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:10
CPC Classifications
A; A01; A01G; A01G27/00; A01G27/005; A01G11/00; A01G9/00; A01G9/02; A01G9/022; A01G9/023; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
APPARATUS FOR GROWING TOMATOES AND OTHER GLASSHOUSE CROPS WHICH COMPRISES A SUPPORTING STRUCTURE, A PLURALITY OF ELONGATED CONTAINERS FOR A GROWTH MEDIUM ARRANGED IN TIERS IN GENERALLY STEPWISE FORMATION MOUNTED ON THE STRUCTURE, THE TIERS BEING TRANSVERSELY SPACED AT AN APPROPRIATE DISTANCE FOR THE CROP TO BE GROWN, IRRIGATION PIPES IN THE GROWTH MEDIUM CONTAINERS BELOW THE GROWTH MEDIUM, SAID PIPES HAVING OPENINGS TO ALLOW THE PASSAGE OF WATER THEREFROM, A POROUS STRIP COVERING EACH PIPE TO PREVENT BLOCKAGE OF THE OPENINGS THEREIN AND TO SUPPORT THE GROWTH MEDIUM, AND MEANS FOR CONTINUALLY AND AUTOMATICALLY SUPPLYING WATER TO SAID GROWTH MEDIUM VIA THE IRRIGATION PIPES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |